Rotary engine



Oct. 31, 1933. J B, |M|N$ 1,933,415

ROTARY ENGINE Filed Feb. 18. 1931 3 Sheets-Sheet l i Q I J. B. CIMINS ROTARY ENGINE Oct. 31, 1933.

s Sheets-sheaf 2 Jbhn Z5. j mjlns WENT Oct. 31, 1933.

' s Sheets-Sheet 3 Filed Feb. 18. 1931 I om .a m m W y y W n m m b\ Mk .flx \k G M m wmw ATTORNEYS rection indicated by the arrows. and extend transversely of two of the annular c e 51933 1,933,415 a 1,933,415 ROTARY ENGINE c John B. Cirnins,Easton,Pa.. v

" Application February 18,1931; Serial No. 516,727 1 a 1 chum. (o1. 12s 1 3) This invention relates to rotary engines and and trunnions 8 at the ends of a rotor, indicated more particularlyto a rotary engine of the inin general'by'thenumeralQ are journalled in I ternal combustion type, and the invention has these bearings. A rotary abutment indicated in a as its primary object to provide a rotary engine general by the numeral 10 is provided at its ends of thistype which will afford maximum powerwith trunnions 11 which are journalled in bear- 60 in consonance with the quantity of fuel con lugs 12 upon the heads 6,- which heads also close sumed and in which the period of delivery of the ends of the lower chamber 3. Intermeshing. power on each explosion of the fuel charge is of 1 gears 13 and 14 of precisely the same diameter greater length than is possible in an engine of connect the rotor 9 to the abutmentlO and therethe crank shaft type. fore the rotor and the abutment are caused to Another object of the invention is to provide rotate in unison with each other and in cona rotary internal combustion engine so consonance with each other, The rotor is provided structed that the parts comprising the stator or with space Cylindrical dy portions 15 d casing and the rotors may be very conveniently fining between them annular chambers 16. The 15 assembled and disassembled in the event repairs abutment is provided with spaced cylindrical are found nece sar s body portions 15 defining between them annular This invention also consists in certain other C b BZU latter having the y 11011310115, features of construction and in the combination 5 projecting therein, While the y portions 5 and arrangement of the several parts, to be herep j into t C mb 6. i l inafter fully described, illustrated in the ac- Inlet por 17 are Provided in the Wa Of the company-mg drawings, and specifically pointed chamber 2 and adjacent the point of juncture of out in the appended claim, it being understood this chamber with the chamber 3, and supply of course that minor changes may be made so pipes 18 for the motive fluid under pressurear'e long as they fall within the scope of the claim. placed in co u c t th p ts. n In describing my invention in detail, reference exhaust port 19 is lilkewise provided in the opwill be had to the accompanying drawings, where posite side of the chamber 2 and substantially in like characters denote like or corresponding opposite andin approximately the same plane as parts throughout the several views,.and in which; the inlet ports 17, and, mounted upon the cham- Figure 1 is a vertical longitudinal sectional her 2 at that side opposite the side at which view through the rotary combustion engine emthe exhaust port 18 is located are spark plugs bodying the invention taken onthe line 1--1 of 20, and these plugs are of the conventional type. Figure 3, looking in the direction of the arrows. The rotor 9 is formed with two vanes 21 which Figure 2 is a sectional view taken substantially are located diametrically: opposite each other h line of Figure looking in the diand which are radial to the axis of the rotor 9 Figure 3 is a vertical sectional view taken subchambers 16. One of the circumferential body St y Q the line of Figure 1,.100king n portions 15 of the rotor 9 is formed, as shown the direction indicated by the arrows. most clearly in Figure 4 0f the aw n w th a Figure 4 is a similar view on the line 4 4 of compression pocket 2 wh i f arcuatc f m, Figure 2, looking in the direction indicated by and the wall of the chamber 2 is formed in its 9 the rr w inner side with a by-pass passage 23 which como Figure 5 is a similar view on the line 5-5 of municates at one end with the annular chamber V Figure 2, looking in the direction indicated by the in whi h th said y p rt 5 r t t s and, arrows, 1 at its other end with the annular chamber in Ihe engine embodying the invention comprises which the next adjacent annular body portion a casing which is indicated in general by the rotates. 1 l numeral 1 and which casing comprises upper Each of the circumferential body portions of and lower, substantially cylindrical chambers inthe abutment 10 is formed with an arcuate recess dicated respectively by the numerals 2 and 3, the 24 to receive the vanes.

two chambers being in communication with each In operation,- during the rotation of the rotor 105 other at their lower and upper sides, respectively. 9, the fuel enters the annular chambers 16 which The chamber 3 is open at its bottom but normally are in communication with theifuel pipes 18 and closed'by a base 4 removably secured in place by the vanes in said chambers force the fuel under .bolts5. The chamber 2 is closed by heads 6 and compression in the by-passes 23 at one side of these heads are formed with bearing extensions 7, the casing and the compressed fuel Within said m by-passes is delivered into the pockets 22 and from there into the by-passes 23' at the opposite side of the casing where said compressed fuel is ignited by the spark plug 20 to expand against the vanes of the other annular chambers 16 and the spent or burnt gases exhaust therefrom through the ports 19. Thus it will be seen that the fuel may be drawn into the engine and then compressed and ignited by a minimum number of parts;

While the present invention as illustrated and described as embodied in a rotary internal combustion engine or, generally speaking, as a rotary engine, it will be understood that it may take the form of a pump for the delivery of water, oil, air, or any other fluid.

What I claim is:

A rotary engine comprising a casing having upper and lower communicating compartments, a rotor journaled in the upper compartment and having annular spaced chambers forming in the rotor annular enlargements and one of said enlargements having a peripheral and arcuately curved pocket, a rotatable abutment journaled in the lower compartment and having annular chambers to receive the enlargements of the rotor and providing annular enlargements received by the annular chambers of the rotor, vanes formed on the rotor and located in the chambers thereof, meshing gears connecting the rotor to the abutment, said abutment having recesses to receive the vanes during the rotation of the rotor and the abutment, said casing Within the upper compartment having by-passes oppositely arranged to each other and each communicating with a chamber of the rotor and adapted to communicate with the'curved pocket of the rotor during the rotation of the latter, a fuel supply pipe communicating Withone of the chambers of the rotor, said casing having an exhaust port communicating with the other chamberof said rotor, and aspark plug carried by the casing and extending into one of the bypasses, one of said vanes and'its respective chamher and the abutment cooperating to form a compressor for the fuel to force said fuel from the fuel pipe into one of the by-passes, said curved pocket adapted to transfer the compressed fuel in the last-named icy-pass into the other by-p'ass' to be ignited by said spark plug and. act against the other vane.

' 7 JOHN B. CIMINS. 

